Provision of instructions related to measurements by a wireless communication device on a signal from a wireless communication network

ABSTRACT

A system ( 300 ) of a wireless communication network ( 100 ) comprising a first network node ( 110 ) arranged for wireless communication with a wireless communication device ( 130 ). A message is triggered to be sent from the first network node ( 110 ) to and received by the wireless communication device ( 130 ). The message comprises instructions related to measurements by the wireless communication device ( 130 ) on a signal from a network node ( 110; 120 ) of the wireless communication network ( 100 ). The instructions comprising a first measurement condition and a second measurement condition and that both the first measurement condition and the second measurement condition have to be fulfilled for the wireless communication device ( 130 ) to report at least one of the measurements to the wireless communication network ( 100 ).

TECHNICAL FIELD

Embodiments herein relate to methods and arrangements, such as a systemof a wireless communication network and a wireless communication device.More particularly embodiments herein relate to provision of a messagewith instructions related to measurements by the wireless communicationdevice on a signal received by the wireless communication device from anetwork node of the wireless communication network.

BACKGROUND

Communication devices such as wireless communication devices, thatsimply may be named wireless devices, may also be known as e.g. userequipments (UEs), mobile terminals, wireless terminals and/or mobilestations. A wireless device is enabled to communicate wirelessly in awireless communication network, that alternatively e.g. may be namedcellular communication network, wireless communication system, radiocommunication system, cellular radio system, cellular network orcellular communication system. The communication may be performed e.g.between two wireless devices, between a wireless device and a regulartelephone and/or between a wireless device and a server via a RadioAccess Network (RAN) and possibly one or more core networks, comprisedwithin the cellular communication network. The wireless device mayfurther be referred to as a mobile telephone, cellular telephone,laptop, Personal Digital Assistant (PDA), tablet computer, just tomention some further examples. Wireless devices may be so called Machineto Machine (M2M) devices or Machine Type of Communication (MTC) devices,i.e. devices that are not associated with a conventional user. Thewireless device may be, for example, portable, pocket-storable,hand-held, computer-comprised, or vehicle-mounted mobile device, enabledto communicate voice and/or data, via the RAN, with another entity, suchas another wireless device or a server. The wireless communicationnetwork covers a geographical area in which radio coverage is providedand enables wireless devices to connect and communicate in the network.The area may be divided into subareas, e.g. cell areas, wherein eachsubarea is served by at least one base station, or Base Station (BS),e.g. a Radio Base Station (RBS), which sometimes may be referred to ase.g. “eNB”, “eNodeB”, “NodeB”, “B node”, or BTS (Base TransceiverStation), gNB, depending on the technology and terminology used. Thebase stations may be of different classes such as e.g. macro eNodeB,home eNodeB or pico base station, based on transmission power andthereby also cell size. The base station at a base station sitetypically provides radio coverage for one or more cells. A cell istypically identified by one or more cell identities and may beassociated with a geographical area where radio coverage for that cellis provided by the base station at the base station site. Cells mayoverlap so that several cells cover the same geographical area. By thebase station providing or serving a cell is meant that the base stationprovides radio coverage such that one or more wireless devices locatedin the geographical area where the radio coverage is provided may beserved by the base station in said cell. When a wireless device is saidto be served in or by a cell this implies that the wireless device isserved by the base station providing radio coverage for the cell. Onebase station may serve one or several cells. Further, each base stationmay support one or several communication technologies. The base stationscommunicate over the air interface operating on radio frequencies withthe wireless device within range of the base stations.

The expression downlink (DL) is used for the transmission path from thebase station to the wireless device. The expression uplink (UL) is usedfor the transmission path in the opposite direction i.e. from thewireless device to the base station.

UMTS is a 3G, or third generation, mobile communication system, whichevolved from Global System for Mobile communications (GSM) that belongsto the so called 2nd generation or 2G. UMTS provides improved mobilecommunication services based on Wideband Code Division Multiple Access(WCDMA) access technology. UMTS Terrestrial Radio Access Network (UTRAN)is essentially a radio access network using wideband code divisionmultiple access for wireless devices. High Speed Packet Access (HSPA) isan amalgamation of two mobile telephony protocols, High Speed DownlinkPacket Access (HSDPA) and High Speed Uplink Packet Access (HSUPA),defined by 3GPP, that extends and improves the performance of existing3G mobile telecommunication networks utilizing the WCDMA. Such networksmay be named WCDMA/HSPA.

The 3rd Generation Partnership Project (3GPP) has further evolved theUTRAN and GSM based radio access network technologies, for example intoEvolved UTRAN (EUTRAN) used in Long Term Evolution (LTE) that is a 4G,i.e. 4^(th) generation, mobile communication system.

3GPP is also involved in standardizing another new generation wide areanetworks, which may be referred to as fifth generation (5G). 5G NewRadio (5G NR), or simply NR, is the new radio air interface beingdeveloped for 5G. However, NR may also be used to denote 5G in general.Another acronym being used to denote 5G is Next Generation (NG).

In wireless communication networks, UE measurements are used to monitorand report the serving cell and neighboring cell(s) signal level andquality to assist the radio network to choose a suitable serving cellfor the UE. There are different reasons to relocate a UE from a currentserving cell to another cell, such as coverage reasons, traffic loadlevel or support of a specific service.

UE measurements are configured by the radio network, also calledwireless communication network, and several parameters are involved tospecify the conditions for measurements and reporting.

In LTE, UE measurement configurations provided by the EUTRAN, i.e. theradio network, to a UE are specified in the 3GPP Technical Specification(TS) 36.331 EUTRA Radio Resource Control (RRC) Protocol Specification,see e.g. V14.3.0 (2017-06). A corresponding specification, 3GPP TS38.331 NR RRC Protocol Specification, see e.g. V0.0.4, is underdevelopment for NR which is expected to be partly similar to the EUTRANversion where applicable. For both specifications, see particularlychapters 5.5 and 6.3. The measurement configuration framework in NR willbe based on the framework from LTE, as described in said 3GPP TS 38.331.In NR, the network can configure a so called RRC_CONNECTED UE to performcell level and beam level measurements and report them in accordancewith the measurement configuration. The measurement configuration isprovided by means of dedicated signaling. The measurement configurationmay be provided to the UE via RRC messages such asRRCConnectionReconfiguration and/or RRCConnectionResume.

The radio network can configure the UE to perform the following types ofmeasurements:

-   -   Intra-frequency measurements: measurements at the downlink        carrier frequency/frequencies of the serving cell/cells.    -   Inter-frequency measurements: measurements at frequencies that        differ from any of the downlink carrier frequency/frequencies of        the serving cell/cells.    -   Inter Radio Access Technology (inter-Rat or IRAT) measurements        of EUTRA frequencies.

An RRC_CONNECTED UE in NR can be configured to perform UTRAmeasurements, GSM measurements and/or non-3GPP IRAT measurements, suchas Wireless Local Area Network (WLAN) Code Division Multiple Access 2000(CDMA2000), etc. The measurement configuration includes the followingparameters:

1. Measurement objects: A list of objects on which the UE shall performthe measurements.

-   -   For intra-frequency and inter-frequency measurements a        measurement object is associated to an NR downlink carrier        frequency. Associated with this carrier frequency, the network        can configure a list of ‘blacklisted’ cells and a list of        ‘whitelisted’ cells. Blacklisted cells are not applicable in        event evaluation or measurement reporting. Whitelisted cells are        the only ones applicable in event evaluation and/or measurement        reporting.    -   For inter-RAT E-UTRA measurements a measurement object is a        single E-UTRA downlink carrier frequency.

2. Reporting configurations: A list of reporting configurations wherethere can be one or multiple reporting configurations per measurementobject. Each reporting configuration comprises the following:

-   -   Reporting criterion: The criterion that triggers the UE to send        a measurement report which can either be event triggered or        periodical. The criterion also includes a trigger quantity, such        as Reference Signal Received Power (RSRP), Reference Signal        Received Quality (RSRQ) or Signal to Interference and Noise        Ratio (SINR).    -   Reference Signal (RS) type: The RS to be considered by the UE        for cell level and beam level measurements, such as New Radio        Synchronization Signal (NR-SS) or Channel State Information        Reference Signal (CSI-RS).

There is a new aspect in NR that cell quality can be computed based ontwo types of RSs, NR-SS, basically NR-Primary SS (NR-PSS) and/orNR-Secondary SS (NR-SSS) and CSI-RS.

-   -   Reporting format: The cell level and beam level quantities that        the UE includes in the measurement report, e.g. RSRP and/or RSRQ        and/or SINR, and associated information, e.g. number of cells        and/or beams to report.

3. Measurement identities: A list of measurement identities where eachmeasurement identity links one measurement object with one reportingconfiguration. By configuring multiple measurement identities, it ispossible to link more than one measurement object to the same reportingconfiguration, as well as to link more than one reporting configurationto the same measurement object. The measurement identity is alsoincluded in the measurement report that triggered the reporting, servingas a reference to the network.

4. Quantity configurations: One quantity configuration is configured perRAT type. The quantity configuration defines the measurement quantitiesand associated filtering used for all event evaluation and relatedreporting of that measurement type.

5. Measurement gaps: Periods that the UE may use to performmeasurements, i.e. no (uplink, UL, downlink, DL) transmissions arescheduled.

SUMMARY

In view of the above, an object to improve or enable improvementsregarding reporting by a wireless communication device, e.g. a UE, tothe wireless communication network of measurements performed by thewireless device. The improvements may e.g. be to enable to send moreaccurate measurement result from the UE to the wireless communicationnetwork, for example discard sending measurements that are not ofinterest for the network and/or to reduce signaling for sendingmeasurements from the UE to the wireless communication network comparedto prior art.

According to a first aspect of embodiments herein, the object isachieved by a method performed by a system of a wireless communicationnetwork. The wireless communication network comprises a first networknode arranged for wireless communication with a wireless communicationdevice. The system triggers sending of a message from the first networknode to the wireless communication device. The message comprisesinstructions related to measurements by the wireless communicationdevice on a signal received by the wireless communication device from anetwork node of the wireless communication network. The instructionscomprise a first measurement condition and a second measurementcondition where both the first measurement condition and the secondmeasurement condition have to be fulfilled for the wirelesscommunication device to report at least one of the measurements to thewireless communication network.

According to a second aspect of embodiments herein, the object isachieved by a system of a wireless communication network. The wirelesscommunication network comprises a first network node arranged forwireless communication with a wireless communication device. The systemis configured to trigger sending of a message from the first networknode to the wireless communication device. The message comprisesinstructions related to measurements by the wireless communicationdevice on a signal received by the wireless communication device from anetwork node of the wireless communication network. The instructionscomprise a first measurement condition and a second measurementcondition where both the first measurement condition and the secondmeasurement condition have to be fulfilled for the wirelesscommunication device to report at least one of the measurements to thewireless communication network.

According to a third aspect of embodiments herein, the object isachieved by a method performed by a by a wireless communication devicewirelessly connected to a first network node of a wireless communicationnetwork. The wireless communication device receives a message from thefirst network node, which message comprises instructions related to atleast one measurement by the wireless communication device on a signalreceived by the wireless communication device from a network node of thewireless communication network. The instructions comprise a firstmeasurement condition and a second measurement condition where both thefirst measurement condition and the second measurement condition have tobe fulfilled for the wireless communication device to report the atleast one measurement to the wireless communication network. Thewireless communication device performs the at least one measurement onthe signal received from the network node. The wireless communicationdevice reports the at least one measurement to the wirelesscommunication network based on whether the at least one measurementfulfils the first measurement condition and the second measurementcondition.

According to a fourth aspect of embodiments herein, the object isachieved by a wireless communication device wirelessly configured towirelessly connected to a first network node of a wireless communicationnetwork. The wireless communication device is configured to receive amessage from the first network node, which message comprisesinstructions related to at least one measurement by the wirelesscommunication device on a signal received by the wireless communicationdevice from a network node of the wireless communication network. Theinstructions comprise a first measurement condition and a secondmeasurement condition where both the first measurement condition and thesecond measurement condition have to be fulfilled for the wirelesscommunication device to report the at least one measurement to thewireless communication network. The wireless communication device isfurther configured to perform the at least one measurement on the signalreceived from the network node. Moreover, the wireless communicationdevice is configured to report the at least one measurement to thewireless communication network based on whether the at least onemeasurement fulfils the first measurement condition and the secondmeasurement condition.

Thanks to the above and embodiments herein, the system and thus thewireless communication network are enabled to instruct the wirelesscommunication device to take two or even more measurement conditionsinto consideration when determining whether to send, such as report, oneor more measurements to the network node. Thereby it e.g. becomespossible to determine with greater precision whether a measurement is ofvalue for the network node, when e.g. deciding whether to performhandover of the wireless communication device from the first networknode to the second network node. In other words, embodiments hereinenable improvements regarding reporting by a wireless communicationdevice to the wireless communication network of measurements performedby the wireless communication device.

BRIEF DESCRIPTION OF THE DRAWINGS

For a more complete understanding of the embodiments and their featuresand advantages, reference is now made to the following description,taken in conjunction with the accompanying drawings, which are brieflydescribed in the following.

FIG. 1 is a block diagram schematically illustrating a wirelesscommunication network.

FIG. 2 is a combined signalling diagram and flowchart that showssignaling relating to some embodiment herein.

FIG. 3 is a schematic block diagram of a system relating to someembodiments herein.

FIG. 4 is a flowchart schematically illustrating embodiments of a firstmethod that may be performed by the system.

FIG. 5 is a flowchart schematically illustrating embodiments of a secondmethod.

FIG. 6 is a schematic block diagram of a wireless communication devicethat may perform the second method.

DETAILED DESCRIPTION

FIG. 1 is a block diagram schematically illustrating a wirelesscommunication network 100 being an exemplary wireless communicationnetwork in which embodiments herein may be implemented. The wirelesscommunications network 100 may be a wireless communications network suchas an NR, LTE, LTE-Advanced, Wideband CDMA, GSM, CDMA2000 or WLAN, orany other similar cellular network or system.

The wireless communications network 100 comprises a first network node110 and a second network node 120. The first network node 110 serves afirst cell 112 and the second network node serves a second cell 122. Thefirst and second network nodes 110, 120 may be base stations, radio basestations, nodeBs, eNodeBs, eNBs, gNBs, Home Node Bs, Home eNode Bs, orany other network unit capable of communicating with wirelesscommunication devices, e.g. UEs, within the cell served by the networknode depending e.g. on the radio access technology and terminology used.The first and second network nodes 110, 120 may alternatively be basestation controllers, network controllers, relay nodes, repeaters, accesspoints, radio access points, Remote Radio Units (RRUs) or Remote RadioHeads (RRHs).

Similar as already discussed above, a cell may correspond to ageographical area where radio coverage is provided by radio base stationequipment at a base station site or at remote locations in RRUs. Thecell definition may also incorporate frequency bands and radio accesstechnology, i.e. RAT, used for transmissions, which means that twodifferent cells may cover the same geographical area but using differentfrequency bands. The first and second network nodes 110, 130 may thus bearranged to communicate over the air or radio interface operating onradio frequencies with wireless devices within range of the respectivenetwork node.

In FIG. 1, a wireless communication device 130 is shown located withinthe first cell 112. The wireless communication device 130 may herein andin the following be named a UE. The wireless communication device 130may be configured to communicate within the wireless communicationnetwork 100 via the first network node 110 over a radio link whenpresent in the first cell 112 served by the first network node 110. Thefirst network node 110 may be called a serving network node to thewireless communication device 130 when it provides wirelesscommunication access to the wireless communication device 130. Thesecond network node 120 may be called a neighbor network node to thewireless communication device 130 when the wireless communication device130 is in the first cell 112 and the wireless communication device 130can receive signals from the second network node 120. The wirelesscommunication device 130 may e.g. be any kind of wireless device such asa mobile phone, cellular phone, Personal Digital Assistants, PDA, asmart phone, tablet, sensor equipped with wireless communicationabilities, Laptop Mounted Equipment, LME, e.g. USB, Laptop EmbeddedEquipment, LEE, Machine Type Communication, MTC, device, Machine toMachine, M2M, device, or Customer Premises Equipment, CPEs, etc.

Attention is drawn to that FIG. 1 is only schematic and for exemplifyingpurpose and that not everything shown in the figure may be required forall embodiments herein, as should be evident to the skilled person.Also, a wireless communication network or networks that correspond(s) tothe wireless communication network 100, will typically comprise severalfurther network nodes, such as further radio network nodes, e.g. basestations, network nodes, e.g. both radio and core network nodes, etc.,as realized by the skilled person, but which are not shown herein forthe sake of simplifying.

As a development towards embodiments herein, the situation indicated inthe Background will first be further elaborated upon.

According to the specification TS 36.331 V14.3.0 (2017-06), as mentionedabove, i.e. for LTE, the reporting criterion, i.e. whether to reportmeasurements performed by a UE on a signal from a network node or not,is limited to only one measurement quantity, also known as triggerquantity, e.g. RSRP, RSRQ or SINR in EUTRAN measurements. In thespecification it is stated “Reporting criterion: The criterion thattriggers the UE to send a measurement report which can either be eventtriggered or periodical. The criterion also includes a trigger quantity(RSRP, RSRQ or SINR).”

The purpose of measurements in most cases is to find a suitable handovertarget cell to move the UE to. It has been determined that in manycases, for the best performance of the UE, both signal level and qualityshould be good or even better in the criterion depending on scenario andmeasurement event. This is not possible to accomplish in the existingtechnology in a combined (single) measurement. In order to have suchdouble, or multiple, check in the existing technology, the network node,e.g. eNB has to either configure separate measurements and/or performadditional post processing on the reported measurement to evaluate if atarget is good enough for a specific mobility purpose. These bothalternatives imply extra RRC signaling, longer handover decision time,increased UE battery consumption and more complicated procedures in theeNB. The same is expected to be the case for NR and in a gNB.

Besides, in NR there are two different RS types, NR-SS and CSI-RS asmentioned above, for measurements. Having only one trigger quantity perevent implies limitations on event measurements to be based on only oneof the RS types.

The text below in italic is procedural text for an Event A5, copied fromchapter 5.5.4.6 of the E-UTRA specification 3GPP TS 36.331 V14.3.0(2017-06) mentioned above, provided here as an example. It is similar toother event measurements. An event, also known as an event measurement,can be understood as an event where measurements on a signal are to bereported when the conditions of the event are fulfilled.

5.5.4.6 Event A5 (Primary Cell/Primary Secondary Cell, PCell/PSCell,Becomes Worse than Threshold1 and Neighbour Cell Becomes Better thanThreshold2)

The UE shall:

1> consider the entering condition for this event to be satisfied whenboth condition A5-1 and condition A5-2, as specified below, arefulfilled;

1> consider the leaving condition for this event to be satisfied whencondition A5-3 or condition A5-4, i.e. at least one of the two, asspecified below, is fulfilled;

1> if usePSCell of the corresponding reportConfig is set to true:

2> use the PSCell for Mp;

1> else:

2> use the PCell for Mp;

NOTE: The cell(s) that triggers the event is on the frequency indicatedin the associated measObject which may be different from the frequencyused by the

PCell/PSCell.

Mp+Hys<Thresh1   Inequality A5-1 (Entering condition 1)

Mn+Ofn+Ocn−Hys>Thresh2   Inequality A5-2 (Entering condition 2)

Mp−Hys>Thresh1   Inequality A5-3 (Leaving condition 1)

Mn+Ofn+Ocn+Hys<Thresh2   Inequality A5-4 (Leaving condition 2)

The variables in the formula are defined as follows:

Mp is the measurement result of the PCell/ PSCell, not taking intoaccount any offsets.

Mn is the measurement result of the neighbouring cell, not taking intoaccount any offsets.

Ofn is the frequency specific offset of the frequency of the neighbourcell (i.e. offsetFreq as defined within measObjectEUTRA corresponding tothe frequency of the neighbour cell).

Ocn is the cell specific offset of the neighbour cell (i.e.celllndividualOffset as defined within measObjectEUTRA corresponding tothe frequency of the neighbour cell), and set to zero if not configuredfor the neighbour cell.

Hys is the hysteresis parameter for this event (i.e. hysteresis asdefined within reportConfigEUTRA for this event).

Thresh1 is the threshold parameter for this event (i.e. a5-Threshold1 asdefined within reportConfigEUTRA for this event).

Thresh2 is the threshold parameter for this event (i.e. a5-Threshold2 asdefined within reportConfigEUTRA for this event).

Mn, Mp are expressed in dBm in case of RSRP, or in dB in case of RSRQand RS-SINR.

Ofn, Ocn, Hys are expressed in dB.

Thresh1 is expressed in the same unit as Mp.

Thresh2 is expressed in the same unit as Mn.

Furthermore, Table 1 below contains extract from the ReportConfigEUTRAinformation element as defined in said TS 36.331 V14.3.0 (2017-06), seepages 488-491. The extract concerns the trigger quantity configuration.

TABLE 1   Extract from ReportConfigEUTRA information elementtriggerQuantity ENUMERATED {rsrp, rsrq}, rs-sinr-Config-r13  CHOICE { release   NULL,  setup   SEQUENCE {   triggerQuantity-v1310    ENUMERATED {sinr}   OPTIONAL,  -- Need ON   aN-Threshold1-r13   RS-SINR-Range-r13  OPTIONAL,  -- Need ON   a5-Threshold2-r13   RS-SINR-Range-r13  OPTIONAL,  -- Need ON   reportQuantity-v1310  ENUMERATED {rsrpANDsinr, rsrqANDsinr, all}

In said specification triggerQuantity is explained as “The quantity usedto evaluate the triggering condition for the event concerning CRS.EUTRAN sets the value according to the quantity of the ThresholdEUTRAfor this event. The values rsrp, rsrq and sinr correspond to ReferenceSignal Received Power (RSRP), Reference Signal Received Quality (RSRQ)and Reference Signal to Interference and Noise Ratio (RS-SINR), see TS36.214. If triggerQuantity-v1310 is configured, the UE only considersthis extension (and ignores triggerQuantity i.e. without suffix).”

Embodiments herein may be considered to relate to, and can beimplemented by, extending or adapting the measurement configuration,e.g. signaled by the first network node 110 to the wirelesscommunication device 130, i.e. measurement instructions related to UEmeasurements on signals received by the UE from one or more networknodes, and also to improve handling in the wireless communication device130, i.e. UE implementation, to make it possible to have double/multipletriggers, which also may be known as fulfilled measurement conditions,for measurement performing and reporting.

In some embodiments, the multiple trigger conditions, also known asmeasurement conditions, are associated to multiple trigger quantities,e.g. different RSRP, RSRQ and SINR. In that case, embodiments hereinmake it possible for the wireless communication network 100 to definemore than one triggering quantity for each measurement event, which canbe defined per reportConfig, i.e. within the same reportConfig, such asin the same reportConfig IE. As indicated above, in the prior art, thenetwork can only configure one single quantity per event withinreportConfig. For example, an event may comprise a first measurementcondition relating to RSRP and a second measurement condition related toRSRQ and both the first and the second measurement conditions are to befulfilled for reporting a measurement.

In further embodiments, the multiple trigger conditions are associatedto measurement results computed based on multiple RS types. As cellmeasurements results may be derived, for example, based on an SS Blockbased reference signal, such as NR-SSS and/or NR-PSSS and/or NR-DeModulation Reference Signal (NR-DMRS) for the Physical BroadcastCHannel (PBCH) or CSI-RS(s) in NR, the triggering rules may be based onone or more of the following:

-   -   Cell-level RSRP derived from SS Block AND Cell-level RSRP        derived from CSI-RS(s)    -   Cell-level RSRQ derived from SS Block AND Cell-level RSRQ        derived from CSI-RS(s)    -   Cell-level RSRP derived from SS Block AND Cell-level RSRQ        derived from CSI-RS(s)    -   Cell-level RSRQ derived from SS Block AND Cell-level RSRP        derived from CSI-RS(s)

Note: RSRP and RSRQ are used as examples although these embodiments arealso applicable to any quantity related to cell coverage or quality e.g.SINR.

In other words, a measurement report may be sent if a first measurementcondition related to a measurement performed based on a first referencesignal is fulfilled, and also a second measurement condition related toa measurement performed based on a second reference signal is fulfilled.

In yet further embodiments, the multiple trigger conditions areassociated to cell level measurement results and beam level measurementinformation, which can also be measurement results. Events may betriggered based on the cell measurement results of serving and/orneighbor cell combined with one or a combination of the following beamlevel based triggering conditions:

-   -   Number of “good” beams of serving and neighbor cells in addition        to cell measurement results triggering, i.e.:        -   A1-like event, e.g. as defined in said 3GPP TS 36.331            V14.3.0 (2017-06), is triggered if number of “good” beams in            serving cell is higher and/or lower than a threshold;        -   A2-like event, e.g. as defined in said 3GPP TS 36.331            V14.3.0 (2017-06), is triggered if number of “good” beams in            serving cell is lower and/or higher than a threshold;        -   A3-like event, e.g. as defined in 3GPP TS 36.331 V14.3.0            (2017-06), is triggered if number of “good” beams of            neighbor cell becomes offset better than the number of            “good” beams of the PCell/PSCell.        -   A4-like event, e.g. as defined in 3GPP TS 36.331 V14.3.0            (2017-06), is triggered if number of “good” beams in            neighbor cell lower and/or higher than a threshold;        -   A5-like event, e.g. as defined in 3GPP TS 36.331 V14.3.0            (2017-06), is triggered if number of “good” beams in            PCell/PScell becomes lower than a threshold-3 and number of            “good” beams in neighbor becomes better than threshold-4;        -   A6-like event, e.g. as defined in 3GPP TS 36.331 V14.3.0            (2017-06), is triggered if number of “good” beams in            neighbor cell becomes offset better in terms of number of            good beams than SCell;—Measurement result(s) of “good” beams            of serving and neighbor cells in addition to cell            measurement results triggering, i.e.:        -   A1-like event is triggered if measurement result of the            “best” beam in serving cell is higher than a threshold;        -   A1-like event is triggered if measurement result of the            “best” beam in serving cell is lower than a threshold;        -   A1′: is triggered if Cell quality>th1 AND if measurement            result of the “best” beam in serving cell is higher than a            threshold;        -   A1″: Cell quality>th1 AND if measurement result of the            “best” beam in serving cell is lower than a threshold;        -   A2-like event is triggered if measurement result of the            “best” beam in serving cell is lower or higher than a            threshold;        -   A3-like event is triggered if measurement result of the            “best” beam of neighbor cell becomes offset better than the            measurement result of the “best” beam of the PCell /PSCell.        -   A4-like event is triggered if measurement result of the            “best” beam of neighbor cell is lower or higher than a            threshold;        -   A5-like event is triggered if measurement result of the            “best” beam in PCell/PScell becomes lower than a threshold-3            and if measurement result of the “best” beam in neighbor            becomes better than a threshold-4;        -   A6-like event is triggered if number of “good” beams in            neighbor cell becomes offset better in terms of number of            good beams than SCell;        -   Event is triggered or an additional measurement report is            transmitted if the best beam has changed or the number of            beams changed.

Note: The term “good” beams above may refer to any one of the followingalternatives:

-   -   All detectable beams;    -   All beams above an absolute threshold, which threshold may be        configurable;    -   The beam with the highest measurement value and all the        remaining ones above an absolute threshold;    -   All the beams within a relative threshold from the beam with the        highest value, where the relative threshold may be configurable;

Note: The term “best” beam above may refer to any one of the followingdefinitions:

-   -   The beam associated to a given cell and e.g. indicated by and/or        thanks to a time index in a Physical Broadcast Channel (PBCH)        that is beamformed and can be considered to be so in a        broadcasted manner. Each beam may be indicated by a different        time index that can be beam swept and/or by a SS Block index,        where each SSB Block index may indicate a DL beam that is being        transmitted.The beam may be having the highest measurement        result, e.g. a power based measurement and/or a quality based        measurement. In this context, the SSB may be considered to be or        correspond to a set of reference signals that are beamformed and        beam swept.    -   Notice that could either be based on SS Block or CSI-RS;

Above, combined conditions have been described as applicable for thetriggering of an entering condition of an event. Another possibility isto have the rule as a condition to trigger sub-sequent reports of theevents, such as for event-triggered periodical events. In other words,although the triggering of the first event may be based on a singlecondition, the reporting of subsequent periodic events after thetriggering may be controlled by additional conditions.

In that case, conditions could be based on the change of the conditionthat has triggered the previous report. For example, if the wirelesscommunication device 130 reports triggered cells and layer 3 (L3)filtered beam measurements for a certain set of beams and, e.g., thebest beam for at least one of the reported cell(s) has changed, thewireless communication device 130 may send a measurement report in thepredefined period, otherwise not. The change of best beam may be onecriteria for that, but there can also be additional ones e.g. change inthe number of good beams and a positive and/or negative change.

This makes it possible for the wireless communication network 100 tocontrol the triggering conditions for handover in a different way thanwhat is possible by the prior art technology. Handover may thereby bemore accurate and more flexible.

Advantages and benefits of embodiments herein include e.g.:

-   -   Reduced RRC signaling. This since it is possible to combine        several measurements into one and extra measurement reports can        be avoided.    -   Reduced UE battery consumption due to less measurement reporting    -   More reliable handover decisions since decisions can be made        based on more accurate measurement reports considering both        trigger quantities.    -   More efficient mobility handling mechanism in network nodes,        e.g. a eNB or gNB, that may require less memory and processing.    -   Improved UE and network performance. A mobility decision based        on multiple trigger quantities in handover source and target        ensure proper radio condition after handover which potentially        improves UE and/or network performance in terms of throughput        and capacity and retainability, e.g. drop rate.

FIG. 2 is a combined signalling diagram and flowchart that showssignaling involved when the radio network, for example a serving eNB orgNB, configures UE measurements through dedicated signaling using aRRCConnectionReconfiguration message. The RRCConnectionReconfigurationmessage may contain a ReportConfig Information element (IE), such asabove or updated based on embodiments herein, e.g. for EUTRAN or NR orany other RAT. At least in EUTRAN it is also possible to configure themeasurements via RRCConnectionResume message, although not shown in thefigure. For NR it was not decided which RRC message(s) should be used toprovide the measurement configuration to the UE.

Embodiments herein are not supposed to, or require change of, thesignaling sequence shown in the figure but may involve an update of theInformation Element (IE) ReportConfigEUTRA contents to accomplish acorresponding IE for NR, e.g. when defining new IE ReportConfigGUTRA andother report config IEs that may med defined in versions of the NRspecification 3GPP 38.331 following said version V0.0.4.

As shown, in an action 201 the eNB or gNB may determine a requiredmeasurement configuration, including e.g. report configuration. The enBmay then send and the UE may receive the configuration, that may beordered, in an action 202. When the configuration is completed the UEmay send a RRCConnectionREconfigurationComplete message in an action 203in return to the network, e.g. said eNB or gNB. Thereafter, in an action204, the UE may perform event measurements accordingly, i.e. based onthe received configuration, and e.g. considering the trigger quantityconfiguration.

In the prior art solutions, to configure for example an event A5measurement if e.g. PCell, or a serving cell, such as the first cell112, becomes worse than threshold1 and a neighbor cell becomes betterthan threshold2, there are the following two limitations:

-   -   There is only one trigger quantity defined per event. This        implicitly means that Threshold 1 and threshold 2 shall be of        the same kind, i.e. either RSRP, RSRQ or SINR.    -   It is not possible to configure multiple trigger quantities        (RSRP and/or RSRQ and/or SINR) on source and neighbor        measurements in the same event.

In an example scenario, a UE, e.g. the wireless communication device130, may have encountered poor coverage in its serving cell, e.g. thefirst cell 112. The radio network, in this example the serving eNB, e.g.the first network node 110, configures measurements to the UE toevaluate RSRP, RSRQ and/or SINR of signals received by the UE fromneighbor eNB(s) serving neighbor cells, e.g. the second network node 120serving the second cell 122. To make sure that a target neighbor cell,e.g. the second cell 122, is good enough from RSRP, RSRQ and SINRaspects, the eNB has to configure a measurement with SINR as triggerquantity with report quantity set to all. The received UE measurementreports fulfilling SINR are post processed in the eNB to check whetherRSRP and RSRQ condition for the potential target cell are also goodenough. If not, the measurement report is ignored. This may lead to manywasted measurement reports as they do not lead to any mobility action.This also implies wasted eNB resources and additional UE batteryconsumption.

These problems could have been avoided by letting the UE send themeasurement report only when it has fulfilled all the requiredconditions, e.g. conditions for at least two of RSRP, RSRQ and SINR.

The same scenario is valid also for NR measurements in the NR radioaccess network, that may be referred to as NG-RAN, and also IRATmeasurements from NG-RAN to EUTRAN or any other RAT. Note that the NRradio access network previously may have been referred to as GUTRANalthough NG-RAN now is more commonly used term.

In addition, Radio Resource Management (RRM) measurements in NR havesome differences compared to LTE, such as the fact that cell quality forevent triggering can either be based on CSI-RS or NR-SS. There are twoways to configure event measurements based on RS type:

-   -   Limit each event to one RS type    -   Allow combined RS per event

When performing a mobility based on CSI-RS condition, it is alsotypically important to make sure that NR-SS coverage is good enough inthe target cell. This could be achieved by two separate events, forexample an A3 event based on CSI-RS and an A4 event based on NR-SS.However this may lead to a lot of unnecessary measurement reportssimilar to the previous example. A better solution would be to allow asingle event to consider both RS-types.

Considering both multiple trigger quantities and different RS types, insome embodiments, new report configurations for GUTRAN allow:

-   -   Per threshold related to entering condition, to configure RS        type, e.g. NR-SS, CSI-RS.    -   Per threshold related to entering condition, to configure        multiple trigger quantities.

This could be extended for the other events, where a triggerQuantitylmay be defined to be valid for:

-   -   a1-Threshold    -   a2-Threshold    -   a3-Offset    -   a5-Threshold1 (e.g. as in the first example of Table 2 below)

A triggerQuantity2 may be defined to be valid for:

-   -   a4-Threshold    -   a6-Offset    -   a5-Threshold2 (e.g. as in the first example of Table 2 below)

TABLE 2   First example relating to a configuration for event A5eventA5:   a5-Threshold1 threshold-RSRP, threshold-RSRQ, threshold-SINR  a5-Threshold2 threshold-RSRP, threshold-RSRQ, threshold-SINRTriggerConfig1: SEQUENCE{  RSType1 ENUMERATED {ss, csi-rs} triggerQuantity1 ENUMERATED {single, double, triple} } TriggerConfig2:SEQUENCE{  RSType2 ENUMERATED {ss, csi-rs}  triggerQuantity2 ENUMERATED{single, double, triple} } singleTrigger::= ENUMERATED {rsrp, rsrq,sinr} doubleTrigger::= ENUMERATED {rsrpANDrsrq, rsrpORrsrq, rsrpANDsinr,rsrpORsinr, rsrqANDsinr, rsrqORsinr } tripleTrigger::= ENUMERATED{rsrpANDrsrqANDsinr, rsrpORrsrqORsinr , rsrpANDrsrqORsinr,rsrpORrsrqANDsinr }

The RS type per trigger quantity may either be NR-SS or CSI-RS. Notethat in the present disclosure Al and al generally refer to the sameevent, in other words, whether capital or small letter is used is of nosignificance.

In some embodiments, new report configurations for GUTRA allow also forcombined RS type per entering condition. Assume e.g. that a mobility isdesired when CSI-RS RSRP is lower than a threshold in source and eitherRSRP or RSRQ for the NR-SS is also lower than specified thresholds insource cell, i.e. the following entering condition should be satisfied:

-   -   CSI-RS rsrp<csi-rs-threshold-RSRP AND ((NR-SS        rsrq<ss-threshold-RSRQ) OR (NR-SS rsrp<ss-threshold-RSRP))

Table 3 below is a second example relating to a configuration for eventA5 and that takes this into account, thus shows how such configurationfor GUTRAN can be implemented.

TABLE 3 Second example relating to a configuration for event A5 eventA5:  a5-Threshold1 ss-threshold-RSRP, ss-threshold-RSRQ, ss-threshold-SINR,csi-rs-threshold-RSRP, csi-rs-threshold-RSRQ, csi-rs-threshold-SINR  a5-Threshold2 ss-threshold-RSRP, ss-threshold-RSRQ, ss-threshold-SINR,csi-rs-threshold-RSRP, csi-rs-threshold-RSRQ, csi-rs-threshold-SINRTriggerConfig1: SEQUENCE{  RSType1 ENUMERATED {ss, csi-rs, ssANDcsi-rs,ssORcsi-rs }  triggerQuantity1 ENUMERATED {ss-single, ss-double,ss-triple, csi-rs-single, csi-rs-double, csi-rs-triple } }TriggerConfig2: SEQUENCE{  RSType2 ENUMERATED { ss, csi-rs, ssANDcsi-rs,ssORcsi-rs }  triggerQuantity2 ENUMERATED { ss-single, ss-double,ss-triple, csi-rs-single, csi-rs-double, csi-rs-triple } }singleTrigger::= ENUMERATED {rsrp, rsrq, sinr} doubleTrigger::=ENUMERATED {rsrpANDrsrq, rsrpORrsrq, rsrpANDsinr, rsrpORsinr,rsrqANDsinr, rsrqORsinr } tripleTrigger::= ENUMERATED{rsrpANDrsrqANDsinr, rsrpORrsrqORsinr }

The required thresholds should be configured for each RS type andquantity. In TriggerConfig the RS type may be configured whether one orboth types are desired, together with the logic between them. Per RStype, then the trigger quantity is defined, whether one quantity shouldbe considered or multiple quantities.

This could be extended, and thus used, also for the other events, wheretriggerQuantityl e.g. may be defined to be valid for:

-   -   a1-Threshold    -   a2-Threshold    -   a3-Offset    -   a5-Threshold1 (e.g. as in the second example of Table 3 above)

Additionally, triggerQuantity2 may be defined to be valid for:

-   -   a4-Threshold    -   a6-Offset    -   a5-Threshold2 (e.g. as in the second example of Table 3 above)

Note that simplifications may be made to the proposed and exemplifiedreport configurations herein, for example limiting the triggerquantities or RS types to be combined.

Note that the examples herein are intended to indicate the presence ofand exemplify some parameters. The actual format, names and locationwithin an actual message may of course be different than in the shownexamples.

Embodiments may e.g.be used and are valid for both GUTRAN, i.e. for NR,and EUTRAN, i.e. for LTE, and both regarding intra and/or interfrequency and IRAT measurement events.

As a further example related to EUTRAN and implementation in suchcontext, consider IRAT measurement required before EUTRAN-NR DualConnectivity (EN-DC) setup. If it is desired only to setup EN-DC whenLTE is not optimal on its own, a B2 measurements on NR with multipletrigger quantity and RS type, as mentioned below, may be beneficial andmay be described by:

-   -   (LTE rsrp<B2-Threshold1-RSRP-crs OR LTE        rsrq<B2-Threshold1-RSRQ-crs), i.e. based on “PCell becomes worse        than a threshold1”

AND

-   -   (NR rsrp>B2-Threshold2-RSRP-ss AND NR        rsrq>B2-Threshold2-RSRQ-ss, i.e. based on “Inter RAT neighbor        becomes better than a threshold2”

One way to implement such configuration possibility may be similar tothe earlier examples with e.g. the following RS type and Triggerquantity type:

-   -   RSType: LTE CRS, LTE CSI-RS, NR SS, NR CSI-RS    -   triggerQuantity options: LTE RSRP, RSRQ, SINR, NR RSRP, NR RSRQ,        NR SINR.

In some other embodiments, assuming that s-Measure in the IE is alsoconfigurable per quantity and RS-Type, the joint RS-Type andtriggerQuantity definition proposed in embodiments herein, may beextended to be valid for s-Measure conditions as well. For example, fora given reportConfig A5, assuming ssANDcsi-rs as a desired RS typecombination for threshold 1 and rsrpORsinr as a desired triggercombination for threshold 1, the same could be also valid for s-Measureapplication. This means that the UE does not need to perform the interfrequency measurement unless both NR-SS and CSI-RS has either lower RSRPor SINR than the corresponding configured s-Measure thresholds, forexample s-MeasureRSRP-ss and s-MeasureSlNR-csi-rs, which may beconfigured in measObject or reportConfig IEs or a combination of both.

FIG. 3 is a schematic block diagram of a system 300 that may be providedto perform methods and actions herein.

The system 300 may be a network node of the wireless communicationnetwork 100, such as the first network node 110 or second network node120, which may be a network node providing radio coverage in a cell,e.g. an eNB or gNB. Alternatively, the system may be any other networknode of the wireless communication system 100, such as a node furtheraway from the wireless communication device 130, e.g. a node in the corenetwork or a node in the radio access network, such as another networknode providing radio coverage in a cell, a Radio Network Controller(RNC), a Mobility Management Entity (MME), or similar. In thisalternative, the network node corresponding to the system 300, e.g. thefirst network node 110, may be arranged to receive instructions relatedto measurements by the wireless communication device 130, such as UEmeasurements, from said other network node and communicate theinstructions in the message to the wireless communication device 130.Alternatively, the system 300 may be a group of network nodes, whereinthe functionality of the system is spread out over different physical,or virtual, nodes of the wireless communication network 100. The lattermay be called a cloud implementation, which also may involve nodesoutside the actual wireless communication network 100. Details of thesystem 300 and how it may be configured to perform embodiments hereinare further discussed separately below.

FIG. 4 is a flowchart schematically illustrating embodiments of a firstmethod. The first method is to be performed by a system, e.g. the system300, of a wireless communication network, e.g. the wirelesscommunication network 100. The wireless communication network comprisesa first network node, e.g. the first network node 110, arranged forwireless communication with a wireless communication device, e.g. thewireless communication device 130.

The first method comprises the following action.

Action 401

The system 300 triggers sending of a message from the first network node110 to the wireless communication device 130, e.g. UE. The messagecomprising instructions related to measurements, e.g. UE measurements,by the wireless communication device 130 on a signal received by thewireless communication device 130 from a network node, e.g. the firstnetwork node 110 or the second network node 120, of the wirelesscommunication network 100. The instructions comprise a first measurementcondition and a second measurement condition and that both the firstmeasurement condition and the second measurement condition have to befulfilled for the wireless communication device 130 to report at leastone of the UE measurements to the wireless communication network 100.That is, the wireless communication device 130 may by this beinstructed, or informed, about the first measurement condition and thesecond measurement condition and that both have to be fulfilled for thewireless communication device 130 to report at least one of the UEmeasurements to the wireless communication network 100.

As may be realized, the message and instructions may thus correspond orrelate, such as comprise or be comprised, in a reportConfig IE, orsimilar, and may define measuring events and more than one triggeringquantity for, or per, each measurement event. The triggering quantitiesmay correspond to the measurement conditions.

Thanks to this and embodiments herein, the system 300 and thus thewireless communication network 100 are enabled to instruct the wirelesscommunication device 130 to take two or even more measurement conditionsinto consideration when determining whether to send, such as report, oneor more measurements to the network node. As has been explained infurther detail above, it thereby e.g. becomes possible to determine withgreater precision whether a measurement is of value for the networknode, when e.g. deciding whether to perform handover of the wirelesscommunication device 130 from the first network node 110 to the secondnetwork node 120.

Note that the network node that the wireless communication device 130,by said instructions, may be instructed to measure the signal from maybe a neighbouring network node, e.g. the second network node 120, to thenetwork node that is serving the wireless communication device 130, e.g.the first network node 110.

In some embodiments, the first measurement condition is related to afirst measurement quantity, e.g. RSRP, and the second measurementcondition is related to a second measurement quantity, e.g. RSRQ,different from the first measurement quantity.

Further, in some embodiments, the first measurement condition is relatedto a first reference signal type, e.g. an SS block based referencesignal, and the second measurement condition is related to a secondreference signal type different to the first reference signal type, e.g.CSI RS.

Moreover, in some embodiments, the first measurement condition isrelated to a cell level measurement and the second measurement conditionis related to beam level measurement information, such as a beam levelmeasurement.

Furthermore, in some embodiments, the instructions comprise instructionsto report a first measurement when the first measurement condition isfulfilled and wherein the second measurement condition is a detectionthat the first measurement condition has changed after the firstmeasurement was reported, which the second measurement condition thentriggers reporting of a second measurement.

Referring back to FIG. 3, for the system 300, embodiments herein, suchas described above in relation to FIG. 4, may be implemented through oneor more processors 301 in the system 300, together with computer programcode 302 for performing the functions, actions and/or methods ofembodiments herein. The computer program code 302 may also be providedas a computer program product, for instance in the form of a datacarrier carrying computer program code for performing embodiments hereinwhen being loaded into the system 300. Such carrier may e.g. be in theform of a CD ROM disc. It is however feasible with also other datacarriers such as a memory stick. The computer program code 302 mayfurthermore be provided as pure program code on a server and fordownloading to the system 300. The system 300 may further comprise acommunication unit 303 for communication with other nodes of thewireless communication system 100, and, in case the system is realizedas a network node providing radio coverage to wireless communicationdevices, e.g. UEs, as mentioned above, the communication unit 303 may bearranged for wireless communication with such wireless communicationdevices, e.g. the wireless communication device 130. The system 300 mayfurther comprise a memory 304 that as realized may comprise one or morememory modules. The memory 304 may, for example, be used to storeapplications or programs to perform said functions, actions and/ormethods of embodiments herein and/or any information used by suchapplications or programs. The computer program code 302 may bedownloaded into and/or stored on the memory 304.

Hence, the system 600 may be provided to perform methods and actionsdescribed herein, e.g. the method and action described above in relationto FIG. 4. The system 300 is thus configured to perform said firstmethod and action thereof as described above. Therefore, the system 300and/or said one or more processors 301 and/or the communication unit 303may be operative, or configured, to trigger said sending of said messagefrom the first network node 110 to the wireless communication device130.

FIG. 5 is a flowchart schematically illustrating embodiments of a secondmethod. The second method is to be performed by a wireless communicationdevice, e.g. the wireless communication device 130, wirelessly connectedto a first network node, e.g. the first network node 110, of a wirelesscommunication network, e.g. the wireless communication network 100.

The second method comprises the following actions.

Action 501

The wireless communication device 130 receives a message from the firstnetwork node 110. The message comprises instructions related to at leastone measurement by the wireless communication device 130 on a signalreceived by the wireless communication device 130 from a network node ofthe wireless communication network 100, e.g. the first network node 110or the second network node 120. The instructions comprising a firstmeasurement condition and a second measurement condition and that boththe first measurement condition and the second measurement conditionhave to be fulfilled for the wireless communication device 130 to reportthe at least one measurement to the wireless communication network 100.

In some embodiments, the first measurement condition is related to afirst measurement quantity, e.g. RSRP, and the second measurementcondition is related to a second measurement quantity, e.g. RSRQ,different from the first measurement quantity.

Further, in some embodiments, the first measurement condition is relatedto a first reference signal type, e.g. an SS block based referencesignal, and the second measurement condition is related to a secondreference signal type different to the first reference signal type, e.g.CSI RS.

Moreover, in some embodiments, the first measurement condition isrelated to a cell level measurement and the second measurement conditionis related to beam level measurement information, such as a beam levelmeasurement.

Furthermore, in some embodiments, the instructions comprise instructionsto report a first measurement when the first measurement condition isfulfilled and wherein the second measurement condition is a detectionthat the first measurement condition has changed after the firstmeasurement was reported, which the second measurement condition thentriggers reporting of a second measurement.

Action 502

The wireless communication device 130 performs the at least onemeasurement on the signal received from the network node.

Action 503

The wireless communication device 130 reports the at least onemeasurement to the wireless communication network 100 based on whetherthe at least one measurement fulfils the first measurement condition andthe second measurement condition.

As already indicated above, the system 300 that performs the firstmethod may be a network node, e.g. a base station of the wirelesscommunication network 100, and may be the first network node 110. Thefirst network node 110 may in this case receive the measurements, i.e.the reported measurements, directly from the UE. Alternatively, as alsohas been indicated, the system 300 that performs the first method may beanother network node of the wireless communication network 100, such asa node further away from the wireless communication device 130, e.g. anode in the core network or a node in the radio access network, such asanother base station. In this case, the first network node 110 mayreceive a triggering message from the system 300 and then, in responseto this, transmits the message comprising the instructions to thewireless communication device 130. As also has been indicated above, ifthe system 300 that performs the first method is a group of networknodes, functionality for performing the method may be spread out overdifferent physical or virtual, nodes of and/or in communication thewireless communication network 100. The latter may be called and/orcorrespond to a so called cloud implementation.

FIG. 6 is a schematic block diagram of the wireless communication device130 that may be provided to perform methods and actions herein.

For the wireless communication device 130, embodiments herein may beimplemented through one or more processors 601 in the wirelesscommunication device 130, together with computer program code 602 forperforming the functions, actions and/or methods of embodiments herein.The computer program code 602 may also be provided as a computer programproduct, for instance in the form of a data carrier carrying computerprogram code for performing embodiments herein when being loaded intothe wireless communication device 130. One such carrier may be in theform of a CD ROM disc. It is however feasible with also other datacarriers such as a memory stick. The computer program code mayfurthermore be provided as pure program code on a server and fordownloading to the wireless communication device 130. The wirelesscommunication device 130 may further comprise a communication unit 603for wireless communication with the first network node 110. Thecommunication unit 603 may be a wireless receiver and transmitter or awireless transceiver. The wireless communication device 130 may furthercomprise a memory 604. The memory 604 may, for example, be used to storeapplications or programs to perform said functions, actions and/ormethods of embodiments herein and/or any information used by suchapplications or programs. The computer program code 602 may bedownloaded into and/or stored on the memory 604.

Hence, the wireless communication device 130 may be provided to performmethods and actions described herein, e.g. the method and actiondescribed above in relation to FIG. 5. The wireless communication device130 is thus configured to perform said second method and actions thereofas described above.

Therefore, the wireless communication device 130 and/or said one or moreprocessors 601 and/or the communication unit 603 may be operative, orconfigured, to receive said message from the first network node 110.

Further, the wireless communication device 130 and/or said one or moreprocessors 601 and/or the communication unit 603 may be operative, orconfigured, to perform the at least one measurement on said signal.

Moreover, the wireless communication device 130 and/or said one or moreprocessors 601 and/or the communication unit 603 may be operative, orconfigured, to report said at least one measurement to the wirelesscommunication network 100, e.g. to the first network node 110.

As already indicated, embodiments herein are applicable for cloudimplementation e.g. of a eNB or gNB, as well as distributedimplementation. Further, embodiments herein may be considered to beabout improving measurement configurations, which may affect bothnetwork nodes, e.g. eNBs or gNBs, and wireless communication devices,e.g. UEs. Embodiments herein, and e.g. update of prior artspecifications, nodes and/or devices may be specifically for mobilityenhancement purposes and improved network and/or wireless deviceperformance.

As will be readily understood by those familiar with communicationsdesign and/or electronic implementations thereof, functions, actionsand/or methods described herein may be implemented using digital logicand/or one or more microcontrollers, microprocessors, or other digitalhardware. In some embodiments, several or all of the various functions,methods and/or actions described herein may be implemented together,such as in a single Application-Specific Integrated Circuit (ASIC), orin two or more separate devices with appropriate hardware and/orsoftware interfaces between them. Several of the functions, methodsand/or actions may be implemented on a processor shared with otherfunctional components of a wireless communication device, system ornetwork node, for example.

Alternatively, several of functional elements of e.g. processingcircuits may be provided through the use of dedicated hardware, whileothers may be provided with hardware for executing software, inassociation with the appropriate software or firmware. Thus, the term“processor” as may be used herein does not exclusively refer to hardwarecapable of executing software and may implicitly include, withoutlimitation, Digital Signal Processor (DSP) hardware, Read-Only Memory(ROM) for storing software, Random-Access Memory (RAM) for storingsoftware and/or program or application data, and non-volatile memory.Other hardware, conventional and/or custom, may also be included.Designers of communication receivers will appreciate the cost,performance, and maintenance trade-offs inherent in these designchoices. The different actions taken by the different nodes may beimplemented with different circuits.

From the above it may be seen that embodiments herein may concern acomputer program product, comprising instructions which, when executedon at least one processor, e.g. the processors 303 or 603, cause the atleast one processor to carry out any of the functions, methods and/oractions described. Also, some embodiments may, as described above,further comprise a carrier containing said computer program, wherein thecarrier may be one of an electronic signal, optical signal, radiosignal, or computer readable storage medium.

The terminology used in the detailed description of the exemplaryembodiments herein and as illustrated by the accompanying drawings isnot intended to be limiting of the described methods and arrangements,such as the system 300 and the wireless communication device 130.

Reference to an element in singular herein is not intended to mean “oneand only one” unless explicitly so stated, but rather “one or more.” Allstructural and functional equivalents to the elements of theabove-described embodiments that are known to those of ordinary skill inthe art are expressly incorporated herein by reference and are intendedto be encompassed hereby. Moreover, it is not necessary for an apparatusor method to address each and every problem sought to be solved by thepresently described concept, for it to be encompassed hereby.

In the exemplary figures, a broken line may generally signal that thefeature within the broken line is optional.

Note that systems, networks, apparatuses, nodes, devices etc forimplementing embodiments herein typically comprise more and/or othercomponents than exemplified above. Additionally, operations, methods andactions of embodiments herein may be performed using any suitable logiccomprising software, hardware, and/or other logic. As used in thisdocument, “each” refers to each member of a set or each member of asubset of a set. Similarly, methods disclosed for embodiments herein mayinclude more, fewer, or other steps than indicated. Additionally,actions may be performed in any suitable order.

Embodiments herein are not limited to the above described embodiments.Various alternatives, modifications and equivalents exists, and theabove described embodiments should not be taken as limiting the scope ofthe present disclosure, which is defined by the appending claims.

1. A method performed by a system of a wireless communication network,the wireless communication network comprising a first network nodearranged for wireless communication with a wireless communicationdevice, the method comprising: triggering sending of a message from thefirst network node to the wireless communication device, the messagecomprising instructions related to measurements by the wirelesscommunication device on a signal received by the wireless communicationdevice from a network node of the wireless communication network, theinstructions comprising a first measurement condition and a secondmeasurement condition and that both the first measurement condition andthe second measurement condition have to be fulfilled for the wirelesscommunication device to report at least one of the measurements to thewireless communication network.
 2. The method as claimed in claim 1,wherein the first measurement condition is related to a firstmeasurement quantity and the second measurement condition is related toa second measurement quantity different from the first measurementquantity.
 3. The method as claimed in claim 1, wherein the firstmeasurement condition is related to a first reference signal type andthe second measurement condition is related to a second reference signaltype different to the first reference signal type.
 4. The method asclaimed in claim 1, wherein the first measurement condition is relatedto a cell level measurement and the second measurement condition isrelated to beam level measurement information.
 5. The method as claimedin claim 1, wherein the instructions comprise instructions to report afirst measurement when the first measurement condition is fulfilled andwherein the second measurement condition is a detection that the firstmeasurement condition has changed after the first measurement wasreported which second measurement condition then triggers reporting of asecond measurement.
 6. A system of a wireless communication network, thewireless communication network comprising a first network node arrangedfor wireless communication with a wireless communication device, wherethe system is configured to: trigger sending of a message from the firstnetwork node to the wireless communication device, the messagecomprising instructions related to measurements by the wirelesscommunication device on a signal received by the wireless communicationdevice from a network node of the wireless communication network, theinstructions comprising a first measurement condition and a secondmeasurement condition and that both the first measurement condition andthe second measurement condition have to be fulfilled for the wirelesscommunication device to report at least one of the measurements to thewireless communication network.
 7. The system as claimed in claim 6,wherein the first measurement condition is related to a firstmeasurement quantity and the second measurement condition is related toa second measurement quantity different from the first measurementquantity.
 8. The system as claimed in claim 6, wherein the firstmeasurement condition is related to a first reference signal type andthe second measurement condition is related to a second reference signaltype different to the first reference signal type.
 9. The system asclaimed in claim 6, wherein the first measurement condition is relatedto a cell level measurement and the second measurement condition isrelated to beam level measurement information.
 10. The system as claimedin claim 6, wherein the instructions comprise instructions to report afirst measurement when the first measurement condition is fulfilled andwherein the second measurement condition is a detection that the firstmeasurement condition has changed after the first measurement wasreported, which second measurement condition then triggers reporting ofa second measurement.
 11. The system as claimed in claim 6, wherein thesystem is a network node of the wireless communication network.
 12. Amethod performed by a wireless communication device wirelessly connectedto a first network node of a wireless communication network, the methodcomprising: receiving a message from the first network node, the messagecomprising instructions related to at least one measurement by thewireless communication device on a signal received by the wirelesscommunication device from a network node of the wireless communicationnetwork, the instructions comprising a first measurement condition and asecond measurement condition and that both the first measurementcondition and the second measurement condition have to be fulfilled forthe wireless communication device to report the at least one measurementto the wireless communication network; performing the at least onemeasurement on the signal received from the network node, and reportingthe at least one measurement to the wireless communication network basedon whether the at least one measurement fulfils the first measurementcondition and the second measurement condition.
 13. The method asclaimed in claim 12, wherein the first measurement condition is relatedto a first measurement quantity and the second measurement condition isrelated to a second measurement quantity different from the firstmeasurement quantity.
 14. The method as claimed in claim 12, wherein thefirst measurement condition is related to a first reference signal typeand the second measurement condition is related to a second referencesignal type different to the first reference signal type.
 15. The methodas claimed in claim 12, wherein the first measurement condition isrelated to a cell level measurement and the second measurement conditionis related to beam level measurement information.
 16. The method asclaimed in claim 12, wherein the instructions comprise instructions toreport a first measurement when the first measurement condition isfulfilled and wherein the second measurement condition is a detectionthat the first measurement condition has changed after the firstmeasurement was reported which second measurement condition thentriggers reporting of a second measurement.
 17. A wireless communicationdevice configured to wirelessly connect to a first network node of awireless communication network, wherein the wireless communicationdevice is configured to: receive a message from the first network node,the message comprising instructions related to at least one measurementby the wireless communication device on a signal received by thewireless communication device from a network node of the wirelesscommunication network, the instructions comprising a first measurementcondition and a second measurement condition and that both the firstmeasurement condition and the second measurement condition have to befulfilled for the wireless communication device to report the at leastone measurement to the wireless communication network; perform the atleast one measurement on the signal received from the network node, andreport the at least one measurement to the wireless communicationnetwork based on whether the at least one measurement fulfils the firstmeasurement condition and the second measurement condition.
 18. Thewireless communication device as claimed in claim 17, wherein the firstmeasurement condition is related to a first measurement quantity and thesecond measurement condition is related to a second measurement quantitydifferent from the first measurement quantity.
 19. The wirelesscommunication device as claimed in claim 17, wherein the firstmeasurement condition is related to a first reference signal type andthe second measurement condition is related to a second reference signaltype different to the first reference signal type.
 20. The wirelesscommunication device as claimed in claim 17, wherein the firstmeasurement condition is related to a cell level measurement and thesecond measurement condition is related to beam level measurementinformation.
 21. The wireless communication device as claimed in claim17, wherein the instructions comprise instructions to report a firstmeasurement when the first measurement condition is fulfilled andwherein the second measurement condition is a detection that the firstmeasurement condition has changed after the first measurement wasreported, which second measurement condition then triggers reporting ofa second measurement.